found it!

[GUEPE]

ah fooled ya .its the old fosse theme again .this morning whilst looking for a place to plant my latest aquisition from jardiland ,my fork hit something solid just 9inches beneath the turf in the back garden .dug down with a trowel gingerly only to find yippee the fosse tout eaux in all its glory .this girt concrete lump is only 3mtrs from the house ?never mind at least i now know what we have complete with label stating volumn,date de fabrication,too much info?i am just a little supprised at the lack of depth ,and no covering for the plastic outlet pipe.so its up to the loft to find ,or not the famous vent pipe?well the fouine had to get into the toilet from somewhere ?[:D]so its beware where ye dig.